The Quartier Cdt. Avi. DONY is the current headquarters and home for the primary civil and military Belgian medical disaster units (5th Element for Medical Intervention and 5th Medical Supplies and Distribution Element), and home to a Bundeswehr medical depot. The Quartier (District or Neighborhood) is home to quasi-manufacturing facilities, storage facilities, and significant medical facilities - including a hospital/medical center that primarily treats the children of military personnel.
It is still a current(I think) integral unit of SHAPE (Supreme Headquarters Allied Powers Europe).
The base is named after a former Captain-Commander of Aviation Jules Dony, back from when the local was a military airfield.